home ported heads - Moparts Forums

Register Log In Moparts Forums Unlawfl's Race & Engine Tech home ported heads

Print Thread

Page 1 of 2

1

2

home ported heads #1394250 02/27/13 03:39 AM 02/27/13 03:39 AM
Joined: Jan 2007 Posts: 685 pennsylvania poboyengineering OP mopar
poboyengineering OP mopar Joined: Jan 2007 Posts: 685 pennsylvania	a couple of observations while porting my heads in the basement: 1)it takes a lot longer than you planned. 2)port to port consistency is very hard to achieve. 3)it looks good when you go to bed, and looks like crap the next day. 4)i almost forgot...im not as clever as i thought! Last edited by poboyengineering; 02/27/13 04:55 AM. It may be ugly, but it sure is slow. Girls comb their hair in rear view mirrors and the boys try to look so hard....

Re: home ported heads [Re: poboyengineering] #1394251 02/27/13 05:38 AM 02/27/13 05:38 AM
Joined: Jan 2007 Posts: 685 pennsylvania poboyengineering OP mopar
poboyengineering OP mopar Joined: Jan 2007 Posts: 685 pennsylvania	i broke through the pushrod pinchpoint...no surprise...what sort of epoxy will hold a tube to repair the leak? It may be ugly, but it sure is slow. Girls comb their hair in rear view mirrors and the boys try to look so hard....

Re: home ported heads [Re: poboyengineering] #1394252 02/27/13 07:40 AM 02/27/13 07:40 AM
Joined: Feb 2005 Posts: 20,169 PA. pittsburghracer "Little"John
pittsburghracer "Little"John Joined: Feb 2005 Posts: 20,169 PA.	JB weld 1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27 Livin and lovin life one day at a time

Re: home ported heads [Re: poboyengineering] #1394253 02/27/13 01:19 PM 02/27/13 01:19 PM
Joined: Jul 2004 Posts: 19,317 State of confusion T Thumperdart I Live Here
Thumperdart I Live Here T Joined: Jul 2004 Posts: 19,317 State of confusion	Quote: a couple of observations while porting my heads in the basement: 1)it takes a lot longer than you planned. 2)port to port consistency is very hard to achieve. 3)it looks good when you go to bed, and looks like crap the next day. 4)i almost forgot...im not as clever as i thought! My first couple of ports reminded me of my first few beers and women; The women I took home looked great when I(we)went to bed(like your ports)but in the morning things were a bit different(like your ports again).......... You need some dividers and basic cheapo measuring tools(forgot what they`re called)from harbor freight or wherever so you can maintain port-to-port consistancy and good lighting is VERY important........... 72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....

Re: home ported heads [Re: poboyengineering] #1394254 02/27/13 01:30 PM 02/27/13 01:30 PM
Joined: Aug 2010 Posts: 40 Washington S SuperStock68Dart member
SuperStock68Dart member S Joined: Aug 2010 Posts: 40 Washington	Quote: i broke through the pushrod pinchpoint...no surprise...what sort of epoxy will hold a tube to repair the leak? Splash Zone....the best you will find in epoxy for cylinder heads! Last edited by SuperStock68Dart; 02/27/13 01:30 PM.

Re: home ported heads [Re: SuperStock68Dart] #1394255 02/27/13 01:40 PM 02/27/13 01:40 PM
Joined: Jan 2003 Posts: 32,394 Q Quicktree I Win
Quicktree I Win Q Joined: Jan 2003 Posts: 32,394	if you don't have experience and a way to check what you do flow wise you will probably cause more harm than help

Re: home ported heads [Re: SuperStock68Dart] #1394256 02/27/13 01:46 PM 02/27/13 01:46 PM
Joined: Jan 2003 Posts: 16,376 D dogdays I Live Here
dogdays I Live Here D Joined: Jan 2003 Posts: 16,376	Every time I go to the dentist I think about porting heads. For my 302 heads I wore earplugs and a dust mask. The Sears electric die grinder came with a long cylindrical stone so I used that. It quickly wore down to a flame shape. I spent most of the time in the bowls, opening up around the valve guide and smoothing transitions. The pushrod pinch I was leery of but I did trim it some, and I got the port faces out to nearly 360 size, paying more attention to which side of the port was more important. I think it took about 8 hours. Being outside and use of earplugs makes it better. You are right, going over the job the next day, one sees all sorts of little problems. Congratulations on giving it a try! R. Last edited by dogdays; 02/27/13 01:49 PM.

Re: home ported heads [Re: dogdays] #1394257 02/27/13 02:52 PM 02/27/13 02:52 PM
Joined: Mar 2009 Posts: 1,058 bigfork mn D dragram440 super stock
dragram440 super stock D Joined: Mar 2009 Posts: 1,058 bigfork mn	I dont know if imissed it somwewhere but what kind of heads are you porting? I home ported a set of 906's mainly the bowls and cleaned them up and they seemed to work pretty good. I used the porting templates in the bowls from mopar performance. 67' charger 499 RB 10.57 at 127

Re: home ported heads [Re: SuperStock68Dart] #1394258 02/27/13 03:48 PM 02/27/13 03:48 PM
Joined: Feb 2005 Posts: 20,169 PA. pittsburghracer "Little"John
pittsburghracer "Little"John Joined: Feb 2005 Posts: 20,169 PA.	Quote: Quote: i broke through the pushrod pinchpoint...no surprise...what sort of epoxy will hold a tube to repair the leak? Splash Zone....the best you will find in epoxy for cylinder heads! Splash zone is way over kill for holding tubes in. I drill mine out to the tubing size apply a little JB weld and its ready. When you tap it in it wipes of about 90% of it any way. If it is a small block Edelbrock get some 17/32 K&S brass tube #140 from Ace Hardware. If you need more info PM me. I just did 12 holes last night. 1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27 Livin and lovin life one day at a time

Re: home ported heads [Re: poboyengineering] #1394259 02/27/13 04:59 PM 02/27/13 04:59 PM
Joined: Jan 2007 Posts: 685 pennsylvania poboyengineering OP mopar
poboyengineering OP mopar Joined: Jan 2007 Posts: 685 pennsylvania	thanks for the info..btw, these are 308 sb heads (ive only got $20 in them at this point, so im not scared!) the swirl port thing sort of worries me..it looks like they take up a lot of room, and the serious heads dont have them. any advice? my hillbilly way of checking these is to cc the ports...best i can do right now. with any luck ill only slow it down .25 sec...lol It may be ugly, but it sure is slow. Girls comb their hair in rear view mirrors and the boys try to look so hard....

Re: home ported heads [Re: pittsburghracer] #1394260 02/27/13 05:03 PM 02/27/13 05:03 PM
Joined: Aug 2010 Posts: 40 Washington S SuperStock68Dart member
SuperStock68Dart member S Joined: Aug 2010 Posts: 40 Washington	Quote: Quote: Quote: i broke through the pushrod pinchpoint...no surprise...what sort of epoxy will hold a tube to repair the leak? Splash Zone....the best you will find in epoxy for cylinder heads! Splash zone is way over kill for holding tubes in. I drill mine out to the tubing size apply a little JB weld and its ready. When you tap it in it wipes of about 90% of it any way. If it is a small block Edelbrock get some 17/32 K&S brass tube #140 from Ace Hardware. If you need more info PM me. I just did 12 holes last night. If your pressing a tube into a hole why not just use Loctite sleeve retainer? I didn't know what heads he was using, he didn't say that in his post....my heads dont have a hole to press a tube into...and didn't know his did. Sorry for the misunderstanding!

Re: home ported heads [Re: SuperStock68Dart] #1394261 02/27/13 05:50 PM 02/27/13 05:50 PM
Joined: Jan 2003 Posts: 16,376 D dogdays I Live Here
dogdays I Live Here D Joined: Jan 2003 Posts: 16,376	The "story" on the 308s is that the exhaust port is really good, the intake port is where you put the work. Use a single pattern camshaft when you're all done. If you want to see a botched intake port look at chevy 350 heads casting 193, they have about half the intake bowl blocked off. R.

Re: home ported heads [Re: dogdays] #1394262 02/27/13 05:53 PM 02/27/13 05:53 PM
Joined: Jan 2007 Posts: 685 pennsylvania poboyengineering OP mopar
poboyengineering OP mopar Joined: Jan 2007 Posts: 685 pennsylvania	yeah, dogdays..im grinning over the exhaust. really straight roof. It may be ugly, but it sure is slow. Girls comb their hair in rear view mirrors and the boys try to look so hard....

Re: home ported heads [Re: poboyengineering] #1394263 02/27/13 09:31 PM 02/27/13 09:31 PM
Joined: Oct 2011 Posts: 3,036 bean town ....Ca W WHITEDART master
WHITEDART master W Joined: Oct 2011 Posts: 3,036 bean town ....Ca	keep up the good work . like you said 20 dollar heads have some fun and see what you can get out of them some people like the Moroso A-B epoxy. In the 8s N/A.with Brett miller W8's 5.07 at 133 at 2700lb

Re: home ported heads [Re: WHITEDART] #1394264 02/27/13 10:28 PM 02/27/13 10:28 PM
Joined: Feb 2004 Posts: 6,257 acworth / N. georgia - south e... cheapstreetdustr master
cheapstreetdustr master Joined: Feb 2004 Posts: 6,257 acworth / N. georgia - south e...	just press steel stock in the pushrod hole then re-drill to the w2 offset..then grind open the port shirt side square.. dont take anything off the floor unless you know what your doing at the short turn. you will kill more flow there than make if its wrong.. Ive always added material on the short turn.. the radius is key and its easy to kill it and make the same air as an almost unported head.. good luck.. another trick is put a vacuume in the intake port from the comb chamber it will suck out all the debris as you grind.. some doans back pills or ibuprofen and youll will be in order though.. 365" Iron J heads,,3480lbs best 1.39 60ft on SS springs.10.54,124 mph ...6.67 1/8th et.average 60fts 1.46 w/ small cam &.063 no2 pill tagged & insured [image][/image]

Re: home ported heads [Re: cheapstreetdustr] #1394265 02/28/13 12:08 AM 02/28/13 12:08 AM
Joined: Feb 2005 Posts: 20,169 PA. pittsburghracer "Little"John
pittsburghracer "Little"John Joined: Feb 2005 Posts: 20,169 PA.	I LOVE the taste of cast iron in the morning. 1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27 Livin and lovin life one day at a time

Re: home ported heads [Re: pittsburghracer] #1394266 02/28/13 12:19 AM 02/28/13 12:19 AM
Joined: Nov 2003 Posts: 1,969 Chandler, AZ Duner top fuel
Duner top fuel Joined: Nov 2003 Posts: 1,969 Chandler, AZ	Even with a mask on and the shop vac sucking chips from the opposite port - I have black buggers for a week.

Re: home ported heads [Re: Duner] #1394267 02/28/13 12:50 AM 02/28/13 12:50 AM
Joined: Feb 2005 Posts: 20,169 PA. pittsburghracer "Little"John
pittsburghracer "Little"John Joined: Feb 2005 Posts: 20,169 PA.	I would love to have one of these be I would have to start charging more. http://www.grizzly.com/products/28-x-39-Downdraft-Table/H2936 1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27 Livin and lovin life one day at a time

Re: home ported heads [Re: poboyengineering] #1394268 02/28/13 02:36 PM 02/28/13 02:36 PM
Joined: Jan 2003 Posts: 644 Owego, NY J JBurch mopar
JBurch mopar J Joined: Jan 2003 Posts: 644 Owego, NY	Years ago I spent ALOT of time on a pair of "J" heads........The single, most important thing I learned was; I should'a had them leak checked before I bolted them down.......it was a calculated risk I lost! Hope your results are better than mine....... Good luck!!

Re: home ported heads [Re: JBurch] #1394269 02/28/13 04:19 PM 02/28/13 04:19 PM
Joined: May 2012 Posts: 617 PA B bwhackd34 mopar
bwhackd34 mopar B Joined: May 2012 Posts: 617 PA	I could always tell when a set was done "at home" by first glance. The first hole is always the largest....most work done. As the job progressed you could tell guy was getting bored and just wanted to get them "done". Each port would become progressively less and less "worked" until the final hole looked like a quickie polish job...no need to even flow...even if the first hole WAS done properly.... which they never are as they ALWAYS only "open them up" at the accessible areas...

Re: home ported heads [Re: bwhackd34] #1394270 02/28/13 06:14 PM 02/28/13 06:14 PM
Joined: Nov 2003 Posts: 1,969 Chandler, AZ Duner top fuel
Duner top fuel Joined: Nov 2003 Posts: 1,969 Chandler, AZ	I learned years ago to pick one task/area to fix and do it for each port on both sets of heads before going to the next task. That helps keep us novices from becoming over-zealous on one port or cylinder before making all the same moves on the other ones. I have no idea if it's good or bad - but after porting mine, I took them to a buddy with a flow bench to "check" them. I had a 3 cfm spread between best and worst ports. Like I said, I have no idea if that's fairly close or really messed up, but that's how they are.

Re: home ported heads [Re: poboyengineering] #1394271 02/28/13 08:12 PM 02/28/13 08:12 PM
Joined: Feb 2012 Posts: 394 Ohio M moparjoe360.4 enthusiast
moparjoe360.4 enthusiast M Joined: Feb 2012 Posts: 394 Ohio	Quote: the swirl port thing sort of worries me..it looks like they take up a lot of room, and the serious heads dont have them. Are you talking about the rotator on the exaust valve? If you are it will cause problems even with a small performance cam.... I have a head with a hole in it to prove it. One of my valves broke at the retainer (from coil bind?)fell down in the cyl. bent the rod n punched a stem sized hole in the head.

Re: home ported heads [Re: poboyengineering] #1394272 03/01/13 02:08 AM 03/01/13 02:08 AM
Joined: May 2008 Posts: 5,399 Aurora, Colorado 451Mopar master
451Mopar master Joined: May 2008 Posts: 5,399 Aurora, Colorado	I don't do an entire port all at one time. I will start with gasket matching all the ports, then work on the bowl of the ports, etc to keep them all about the same. I use dividers to check consistency. I will usually do just a part of the port then duplicate that on the other ports, then go back and do a bit more, and repeat.

Re: home ported heads [Re: 451Mopar] #1394273 03/01/13 03:23 AM 03/01/13 03:23 AM
Joined: Jan 2003 Posts: 27,421 Balt. Md 3 383man Too Many Posts
383man Too Many Posts 3 Joined: Jan 2003 Posts: 27,421 Balt. Md	I learned how to do valve jobs in my high school auto class but that was just basic valve jobs. Then I learned alot more of the porting and all on my own as my brother bought his own valve grinding tools when he had his own shop. I also found out you always spend way more time porting heads then you think you will spend. These 906 heads here I did my own porting on and I installed the 2.14 and 1.81 valves myself with my brothers machine shop valve grinding tools. We had the tools to cut the guides down for the smaller seals when going to dual springs and even had the tools to knurl valve guides. These are the 906's I used on the mild 440 I had in my 63 for a few years. I opened them up and put the 2.14 and 1.81 valves in them and then worked and blended the bowls along with the rest of the porting. I know I spent at least 40 hrs in the heads and I found out that after I had back surgery there was no way I could port heads any more. Just trying to bend over the heads for a few minutes was impossible with my back problems. This was the last set I ever ported as it was right before I fell and had back surgery. I never flowed them as we had no bench. I just did them as I had learned over the years but I was by no means a profesional head porter. I did many stock valve jobs over the years on friends and customers cars but most were just stock daily drivers. Just mine and my hot rod buddies were the ones I ported myself. I enjoyed doing it but never flowed any to know how good they were. I only knew what worked when I put the heads back on the cars and they went faster. So when I bought my EZ heads I had Dwayne Porter do some of his magic on them. He is a pro and there is no way I could be anywhere as good as him as he has done thousands more heads then me and flows them so he knows what works. I always enjoyed the pride of building my own engines and doing all the work myself but I was a profesioal auto repair tech for my living with my porting and hot rod skills as my hobby. I cant thank Dwayne porter enough for the great job he did on my EZ heads for me. He is a profesional head porter and knows just where to port and what works the best. Here is a pic of the 906's I put the 2.14 and 1.81 valves in and used on my mild 440. Ron

Re: home ported heads [Re: 383man] #1394274 03/01/13 10:01 AM 03/01/13 10:01 AM
Joined: Jan 2003 Posts: 3,103 Phila Pa S scatpacktom master
scatpacktom master S Joined: Jan 2003 Posts: 3,103 Phila Pa	I hear you Ron! I have a flow bench and valve grinding equipment here at the house... I just send all my heads to Dwayne these days. He has done 6 to 10 sets of heads in the last 5 years and I have never had one issue with any of them. To the OP, there is something to doing it yourself but tread lightly it is easy to waste your time and make junk. Less is more sometimes, hard to have positive results without a bench.

Re: home ported heads [Re: scatpacktom] #1394275 03/01/13 01:02 PM 03/01/13 01:02 PM
Joined: Aug 2011 Posts: 25 Glendora, CA MYBD318 member
MYBD318 member Joined: Aug 2011 Posts: 25 Glendora, CA	Good article on basic porting http://www.1962to1965mopar.ornocar.org/ml-pitchercastingheadarticle.html Mike Still a teen just a 416

Re: home ported heads [Re: MYBD318] #1394276 03/01/13 02:07 PM 03/01/13 02:07 PM
Joined: Jan 2003 Posts: 16,376 D dogdays I Live Here
dogdays I Live Here D Joined: Jan 2003 Posts: 16,376	Talking about bending over a head, I find my best results are from sitting on a tall stool with the head on a bench even with the fattest part of my biceps. I don't like the control I get standing up, bending over the bench. R.

Re: home ported heads [Re: poboyengineering] #1394277 03/01/13 05:22 PM 03/01/13 05:22 PM
Joined: Jan 2007 Posts: 685 pennsylvania poboyengineering OP mopar
poboyengineering OP mopar Joined: Jan 2007 Posts: 685 pennsylvania	ive had some conversations with john cadamore (thanks john!) and the subject of putting a 2.05 intake into the 308 heads came up. anyone done this? what were the results? It may be ugly, but it sure is slow. Girls comb their hair in rear view mirrors and the boys try to look so hard....

Re: home ported heads [Re: moparjoe360.4] #1394278 03/01/13 05:34 PM 03/01/13 05:34 PM
Joined: Jan 2007 Posts: 685 pennsylvania poboyengineering OP mopar
poboyengineering OP mopar Joined: Jan 2007 Posts: 685 pennsylvania	Quote: Quote: the swirl port thing sort of worries me..it looks like they take up a lot of room, and the serious heads dont have them. Are you talking about the rotator on the exaust valve? If you are it will cause problems even with a small performance cam.... I have a head with a hole in it to prove it. One of my valves broke at the retainer (from coil bind?)fell down in the cyl. bent the rod n punched a stem sized hole in the head. ive already eliminated the rotators, mostly due to the weight. there is a "wing" thing in the intake to steer the air for swirl. im thinking cutting this back to about 1/4 to 3/8 inch just to move the air around the valve guide. It may be ugly, but it sure is slow. Girls comb their hair in rear view mirrors and the boys try to look so hard....

Re: home ported heads [Re: poboyengineering] #1394279 03/01/13 07:49 PM 03/01/13 07:49 PM
Joined: Jan 2003 Posts: 8,937 Holly/MI D Dean_Kuzluzski master
Dean_Kuzluzski master D Joined: Jan 2003 Posts: 8,937 Holly/MI	Quote: ive already eliminated the rotators, mostly due to the weight. there is a "wing" thing in the intake to steer the air for swirl. im thinking cutting this back to about 1/4 to 3/8 inch just to move the air around the valve guide. Dunno if I'd be so daring to do that just yet............ there's a LOT of racers that have upgraded thier cars to those heads. Don't think the class/production guys can do any mods but I'm sure there's someone out there that has put them thru a flowtest since they are a "best production", better than a J or X head. Ask here or on YellowBullet. R.I.P.- Gary "Coop" Davis 02/09/68-05/13/04

Re: home ported heads [Re: Dean_Kuzluzski] #1394280 03/02/13 09:25 AM 03/02/13 09:25 AM
Joined: Jan 2007 Posts: 685 pennsylvania poboyengineering OP mopar
poboyengineering OP mopar Joined: Jan 2007 Posts: 685 pennsylvania	Quote: Quote: ive already eliminated the rotators, mostly due to the weight. there is a "wing" thing in the intake to steer the air for swirl. im thinking cutting this back to about 1/4 to 3/8 inch just to move the air around the valve guide. Dunno if I'd be so daring to do that just yet............ there's a LOT of racers that have upgraded thier cars to those heads. Don't think the class/production guys can do any mods but I'm sure there's someone out there that has put them thru a flowtest since they are a "best production", better than a J or X head. Ask here or on YellowBullet. i guess its a good thing ive got unmolested spares then! It may be ugly, but it sure is slow. Girls comb their hair in rear view mirrors and the boys try to look so hard....

Page 1 of 2

1

2

Moderated by Al_Alguire, Hotwheelsjr, moparts, not_a_charger, RangerDan440, tboomer

Hop To

Powered by UBB.threads™ PHP Forum Software 7.7.1